Hello, Slowdowns are new but we're also just now beginning to have more Reads, before we where mainly filling up the filesystem. Most of the files (I would say 95%) are not changed after copying, they are only read. Here is a simple df -h from the mounted partitions
/dev/sdd 14T 3.2T 11T 24% /mnt/3 /dev/sde 14T 1.2T 13T 9% /mnt/4 /dev/sdh 14T 2.8T 11T 21% /mnt/7 /dev/sdb 14T 13T 1.5T 90% /mnt/1 /dev/sdf 14T 11T 3.0T 79% /mnt/5 As you can see there is only one that is 90% full but the problems are on all of them now. In order to see if the problem was somehow related with the partition we copied the contents (a simple cp /mnt/6/* /mnt/5) from one partition to another and surprisingly or not the issue is also on the "new" partition. I just tried to copy 240Mb to this partition and after 9 min of waiting the copy just went on and 30 seconds later all was copied. The hardware this runs on is a DELL MD 3200 on a VMWare ESX 5 environment. I would love to give you some numbers just let me know the commands I need to run. Adelino On Mon, Apr 9, 2012 at 5:35 PM, Joel Becker <jl...@evilplan.org> wrote: > On Thu, Apr 05, 2012 at 05:11:59PM +0100, Adelino Monteiro wrote: >> Hello all, >> >> For 4 month now I'm using OCFS in an environment with 7 partitions >> each with 14 Tb running Oracle Linux 6.2 and until last week >> everything was fine. >> Now however we're running into severe performance problems when doing >> simple copies. >> >> I have one of the 7 partitions mounted as RW on one server and 4 >> servers with RO. I did a simple cp of various files on the RW server >> and during that copy the process got into D state and a simple df for >> instance blocked. It took minutes for something that should be >> immediate. This is happening on any of those partitions. > > Hey Adelino, > I'd love to understand your problems. You say you've been > running these systems for four months. Are the slowdowns new? > Was anything happening on the RO servers at the time? > Especially touching the same files or directories? How full are the > filesystems? How much change to they have (that is, are the files > long-lived or constantly being deleted and created)? > > Joel > > -- > > "Also, all of life's big problems include the words 'indictment' or > 'inoperable.' Everything else is small stuff." > - Alton Brown > > http://www.jlbec.org/ > jl...@evilplan.org -- Cumprimentos / Best Regards Adelino Monteiro _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
